code: def get_line_separator_html():
      return (
          "<div style='height: 1px; width: 100%; margin: 1em 0; "
          "background-color: white; background-color: var(--text);'></div>"
      )
  
file_path: h2o-llmstudio/llm_studio/src/utils/plot_utils.py
imports: import html
  import re
  from dataclasses import dataclass
  from typing import List
label_desc: Use image node_id 1 for calling a global function with example usage: get_line_separator_html() and returns: str